diff options
Diffstat (limited to 'src/lib/libcrypto/evp/e_des3.c')
| -rw-r--r-- | src/lib/libcrypto/evp/e_des3.c | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/src/lib/libcrypto/evp/e_des3.c b/src/lib/libcrypto/evp/e_des3.c new file mode 100644 index 0000000000..ac148efab2 --- /dev/null +++ b/src/lib/libcrypto/evp/e_des3.c | |||
| @@ -0,0 +1,271 @@ | |||
| 1 | /* crypto/evp/e_des3.c */ | ||
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
| 3 | * All rights reserved. | ||
| 4 | * | ||
| 5 | * This package is an SSL implementation written | ||
| 6 | * by Eric Young (eay@cryptsoft.com). | ||
| 7 | * The implementation was written so as to conform with Netscapes SSL. | ||
| 8 | * | ||
| 9 | * This library is free for commercial and non-commercial use as long as | ||
| 10 | * the following conditions are aheared to. The following conditions | ||
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
| 13 | * included with this distribution is covered by the same copyright terms | ||
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
| 15 | * | ||
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
| 17 | * the code are not to be removed. | ||
| 18 | * If this package is used in a product, Eric Young should be given attribution | ||
| 19 | * as the author of the parts of the library used. | ||
| 20 | * This can be in the form of a textual message at program startup or | ||
| 21 | * in documentation (online or textual) provided with the package. | ||
| 22 | * | ||
| 23 | * Redistribution and use in source and binary forms, with or without | ||
| 24 | * modification, are permitted provided that the following conditions | ||
| 25 | * are met: | ||
| 26 | * 1. Redistributions of source code must retain the copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer. | ||
| 28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 29 | * notice, this list of conditions and the following disclaimer in the | ||
| 30 | * documentation and/or other materials provided with the distribution. | ||
| 31 | * 3. All advertising materials mentioning features or use of this software | ||
| 32 | * must display the following acknowledgement: | ||
| 33 | * "This product includes cryptographic software written by | ||
| 34 | * Eric Young (eay@cryptsoft.com)" | ||
| 35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
| 36 | * being used are not cryptographic related :-). | ||
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
| 38 | * the apps directory (application code) you must include an acknowledgement: | ||
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
| 40 | * | ||
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 51 | * SUCH DAMAGE. | ||
| 52 | * | ||
| 53 | * The licence and distribution terms for any publically available version or | ||
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
| 55 | * copied and put under another distribution licence | ||
| 56 | * [including the GNU Public Licence.] | ||
| 57 | */ | ||
| 58 | |||
| 59 | #include <stdio.h> | ||
| 60 | #include "cryptlib.h" | ||
| 61 | #ifndef OPENSSL_NO_DES | ||
| 62 | #include <openssl/evp.h> | ||
| 63 | #include <openssl/objects.h> | ||
| 64 | #include "evp_locl.h" | ||
| 65 | #include <openssl/des.h> | ||
| 66 | #include <openssl/rand.h> | ||
| 67 | |||
| 68 | static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
| 69 | const unsigned char *iv,int enc); | ||
| 70 | |||
| 71 | static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
| 72 | const unsigned char *iv,int enc); | ||
| 73 | |||
| 74 | static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); | ||
| 75 | |||
| 76 | typedef struct | ||
| 77 | { | ||
| 78 | DES_key_schedule ks1;/* key schedule */ | ||
| 79 | DES_key_schedule ks2;/* key schedule (for ede) */ | ||
| 80 | DES_key_schedule ks3;/* key schedule (for ede3) */ | ||
| 81 | } DES_EDE_KEY; | ||
| 82 | |||
| 83 | #define data(ctx) ((DES_EDE_KEY *)(ctx)->cipher_data) | ||
| 84 | |||
| 85 | /* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER */ | ||
| 86 | |||
| 87 | static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
| 88 | const unsigned char *in, unsigned int inl) | ||
| 89 | { | ||
| 90 | BLOCK_CIPHER_ecb_loop() | ||
| 91 | DES_ecb3_encrypt((const_DES_cblock *)(in + i), | ||
| 92 | (DES_cblock *)(out + i), | ||
| 93 | &data(ctx)->ks1, &data(ctx)->ks2, | ||
| 94 | &data(ctx)->ks3, | ||
| 95 | ctx->encrypt); | ||
| 96 | return 1; | ||
| 97 | } | ||
| 98 | |||
| 99 | static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
| 100 | const unsigned char *in, unsigned int inl) | ||
| 101 | { | ||
| 102 | DES_ede3_ofb64_encrypt(in, out, (long)inl, | ||
| 103 | &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | ||
| 104 | (DES_cblock *)ctx->iv, &ctx->num); | ||
| 105 | return 1; | ||
| 106 | } | ||
| 107 | |||
| 108 | static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
| 109 | const unsigned char *in, unsigned int inl) | ||
| 110 | { | ||
| 111 | #ifdef KSSL_DEBUG | ||
| 112 | { | ||
| 113 | int i; | ||
| 114 | char *cp; | ||
| 115 | printf("des_ede_cbc_cipher(ctx=%lx, buflen=%d)\n", ctx, ctx->buf_len); | ||
| 116 | printf("\t iv= "); | ||
| 117 | for(i=0;i<8;i++) | ||
| 118 | printf("%02X",ctx->iv[i]); | ||
| 119 | printf("\n"); | ||
| 120 | } | ||
| 121 | #endif /* KSSL_DEBUG */ | ||
| 122 | DES_ede3_cbc_encrypt(in, out, (long)inl, | ||
| 123 | &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | ||
| 124 | (DES_cblock *)ctx->iv, ctx->encrypt); | ||
| 125 | return 1; | ||
| 126 | } | ||
| 127 | |||
| 128 | static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
| 129 | const unsigned char *in, unsigned int inl) | ||
| 130 | { | ||
| 131 | DES_ede3_cfb64_encrypt(in, out, (long)inl, | ||
| 132 | &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | ||
| 133 | (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); | ||
| 134 | return 1; | ||
| 135 | } | ||
| 136 | |||
| 137 | /* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right | ||
| 138 | way, so wrap it here */ | ||
| 139 | static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
| 140 | const unsigned char *in, unsigned int inl) | ||
| 141 | { | ||
| 142 | unsigned int n; | ||
| 143 | unsigned char c[1],d[1]; | ||
| 144 | |||
| 145 | for(n=0 ; n < inl ; ++n) | ||
| 146 | { | ||
| 147 | c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; | ||
| 148 | DES_ede3_cfb_encrypt(c,d,1,1, | ||
| 149 | &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, | ||
| 150 | (DES_cblock *)ctx->iv,ctx->encrypt); | ||
| 151 | out[n/8]=(out[n/8]&~(0x80 >> (n%8)))|((d[0]&0x80) >> (n%8)); | ||
| 152 | } | ||
| 153 | |||
| 154 | return 1; | ||
| 155 | } | ||
| 156 | |||
| 157 | static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
| 158 | const unsigned char *in, unsigned int inl) | ||
| 159 | { | ||
| 160 | DES_ede3_cfb_encrypt(in,out,8,inl, | ||
| 161 | &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, | ||
| 162 | (DES_cblock *)ctx->iv,ctx->encrypt); | ||
| 163 | return 1; | ||
| 164 | } | ||
| 165 | |||
| 166 | BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64, | ||
| 167 | EVP_CIPH_RAND_KEY, des_ede_init_key, NULL, | ||
| 168 | EVP_CIPHER_set_asn1_iv, | ||
| 169 | EVP_CIPHER_get_asn1_iv, | ||
| 170 | des3_ctrl) | ||
| 171 | |||
| 172 | #define des_ede3_cfb64_cipher des_ede_cfb64_cipher | ||
| 173 | #define des_ede3_ofb_cipher des_ede_ofb_cipher | ||
| 174 | #define des_ede3_cbc_cipher des_ede_cbc_cipher | ||
| 175 | #define des_ede3_ecb_cipher des_ede_ecb_cipher | ||
| 176 | |||
| 177 | BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64, | ||
| 178 | EVP_CIPH_RAND_KEY, des_ede3_init_key, NULL, | ||
| 179 | EVP_CIPHER_set_asn1_iv, | ||
| 180 | EVP_CIPHER_get_asn1_iv, | ||
| 181 | des3_ctrl) | ||
| 182 | |||
| 183 | BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1, | ||
| 184 | EVP_CIPH_RAND_KEY, des_ede3_init_key,NULL, | ||
| 185 | EVP_CIPHER_set_asn1_iv, | ||
| 186 | EVP_CIPHER_get_asn1_iv, | ||
| 187 | des3_ctrl) | ||
| 188 | |||
| 189 | BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8, | ||
| 190 | EVP_CIPH_RAND_KEY, des_ede3_init_key,NULL, | ||
| 191 | EVP_CIPHER_set_asn1_iv, | ||
| 192 | EVP_CIPHER_get_asn1_iv, | ||
| 193 | des3_ctrl) | ||
| 194 | |||
| 195 | static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
| 196 | const unsigned char *iv, int enc) | ||
| 197 | { | ||
| 198 | DES_cblock *deskey = (DES_cblock *)key; | ||
| 199 | #ifdef EVP_CHECK_DES_KEY | ||
| 200 | if (DES_set_key_checked(&deskey[0],&data(ctx)->ks1) | ||
| 201 | !! DES_set_key_checked(&deskey[1],&data(ctx)->ks2)) | ||
| 202 | return 0; | ||
| 203 | #else | ||
| 204 | DES_set_key_unchecked(&deskey[0],&data(ctx)->ks1); | ||
| 205 | DES_set_key_unchecked(&deskey[1],&data(ctx)->ks2); | ||
| 206 | #endif | ||
| 207 | memcpy(&data(ctx)->ks3,&data(ctx)->ks1, | ||
| 208 | sizeof(data(ctx)->ks1)); | ||
| 209 | return 1; | ||
| 210 | } | ||
| 211 | |||
| 212 | static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
| 213 | const unsigned char *iv, int enc) | ||
| 214 | { | ||
| 215 | DES_cblock *deskey = (DES_cblock *)key; | ||
| 216 | #ifdef KSSL_DEBUG | ||
| 217 | { | ||
| 218 | int i; | ||
| 219 | printf("des_ede3_init_key(ctx=%lx)\n", ctx); | ||
| 220 | printf("\tKEY= "); | ||
| 221 | for(i=0;i<24;i++) printf("%02X",key[i]); printf("\n"); | ||
| 222 | printf("\t IV= "); | ||
| 223 | for(i=0;i<8;i++) printf("%02X",iv[i]); printf("\n"); | ||
| 224 | } | ||
| 225 | #endif /* KSSL_DEBUG */ | ||
| 226 | |||
| 227 | #ifdef EVP_CHECK_DES_KEY | ||
| 228 | if (DES_set_key_checked(&deskey[0],&data(ctx)->ks1) | ||
| 229 | || DES_set_key_checked(&deskey[1],&data(ctx)->ks2) | ||
| 230 | || DES_set_key_checked(&deskey[2],&data(ctx)->ks3)) | ||
| 231 | return 0; | ||
| 232 | #else | ||
| 233 | DES_set_key_unchecked(&deskey[0],&data(ctx)->ks1); | ||
| 234 | DES_set_key_unchecked(&deskey[1],&data(ctx)->ks2); | ||
| 235 | DES_set_key_unchecked(&deskey[2],&data(ctx)->ks3); | ||
| 236 | #endif | ||
| 237 | return 1; | ||
| 238 | } | ||
| 239 | |||
| 240 | static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) | ||
| 241 | { | ||
| 242 | |||
| 243 | DES_cblock *deskey = ptr; | ||
| 244 | |||
| 245 | switch(type) | ||
| 246 | { | ||
| 247 | case EVP_CTRL_RAND_KEY: | ||
| 248 | if (RAND_bytes(ptr, c->key_len) <= 0) | ||
| 249 | return 0; | ||
| 250 | DES_set_odd_parity(deskey); | ||
| 251 | if (c->key_len >= 16) | ||
| 252 | DES_set_odd_parity(deskey + 1); | ||
| 253 | if (c->key_len >= 24) | ||
| 254 | DES_set_odd_parity(deskey + 2); | ||
| 255 | return 1; | ||
| 256 | |||
| 257 | default: | ||
| 258 | return -1; | ||
| 259 | } | ||
| 260 | } | ||
| 261 | |||
| 262 | const EVP_CIPHER *EVP_des_ede(void) | ||
| 263 | { | ||
| 264 | return &des_ede_ecb; | ||
| 265 | } | ||
| 266 | |||
| 267 | const EVP_CIPHER *EVP_des_ede3(void) | ||
| 268 | { | ||
| 269 | return &des_ede3_ecb; | ||
| 270 | } | ||
| 271 | #endif | ||
